在咖啡作物上模拟迪坎巴和草甘的漂移
Renan Zampiroli1, João Paulo Arantes Rodrigues da Cunha1, Cleyton Batista de Alvarenga1
1Institute of Agrarian Sciences, Federal University of Uberlandia, Uberlandia 38408-100, Brazil.
Plants (Basel, Switzerland)
|October 28, 2023
概括
来自迪坎巴和迪坎巴+草甘混合物的除草剂漂移对咖啡植物造成了明显的损害,包括叶子表皮和生长变化. 然而,这些低剂量暴露并没有影响咖啡产量或植物整体性能.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 植物科学 植物科学
背景情况:
- 除草剂漂移对咖啡种植园构成重大风险,特别是来自像迪坎巴这样的非选择性除草剂.
- 了解模拟的迪坎巴漂移的植物毒性影响对于可持续的咖啡生产至关重要.
研究的目的:
- 评估单独或与草甘混合的迪坎巴在模拟漂移条件下对咖啡植物的植物毒性作用.
- 评估低剂量除草剂对咖啡植物生理学,生长和生产力的影响.
主要方法:
- 使用2x5+1因数方案的随机区块设计,在不同的低剂量 (0.25%至20%) 中应用迪坎巴和迪坎巴+草甘混合物.
- 在两个咖啡桃发育阶段评估了植物毒性损害,生物识别参数 (植物高度,树枝长度) 和生产参数 (谷物分类).
主要成果:
- 模拟的迪坎巴和迪坎巴+草甘漂移导致视觉植物毒性损伤,包括叶子表皮和茎曲,即使在低剂量 (0.25%至5%).
- 低剂量除草剂导致植物高度和树枝长度减少.
- 尽管有明显的损伤和生长变化,但咖啡的生产率和植物性能并没有显著下降.
结论:
- 低剂量的迪坎巴和迪坎巴+草甘漂移可以在咖啡植物中引起暂时的植物毒性症状,而不会影响产量.
- 咖啡豆的物理分类变化表明,需要在种植园附近进行谨慎的除草剂管理,以保持咖啡的质量.
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